Hi Adrija,
You can use the following documentation to enable notifications and emails in your app:
https://docs.mendix.com/howto7/mobile/implementation-guide/
https://docs.mendix.com/appstore/modules/email-connector/
I would also suggest you to find answers within mendix documentation and try things out, which might help you learn faster and better understand studio pro and how things work.
If its still not enough and you are stuck with something, ask in the forum of course!